And you do have first hand information, that this was the reason, as you speak with such authority of that matter? Like, you do know that the temperature in th

And you do have first hand information, that this was the reason, as you speak with such authority of that matter? Like, you do know that the temperature in that hotel was significantly lower than last year? I mean, it seems possible, that it was the reason, (even though the water temperature itself hopefully did not change as the fishs do not like that) and the last nights were quite cold in germany, so stress from temperature difference is possible, but before I claim to know something, I wait until I know.